diff options
| author | Mark Zhang <markz@nvidia.com> | 2019-01-14 17:32:58 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-01-14 22:11:22 +0000 |
| commit | 7151449fe7fa5962c6153355f9779d6be99e8e97 (patch) | |
| tree | d36c632d1584d9c196585c411389158486aade8d | |
| parent | 1cd824361eed0f3621e32df1be15159c91f137d9 (diff) | |
regmap-irq: do not write mask register if mask_base is zero
If client have not provided the mask base register then do not
write into the mask register.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Jinyoung Park <jinyoungp@nvidia.com>
Signed-off-by: Venkat Reddy Talla <vreddytalla@nvidia.com>
Signed-off-by: Mark Zhang <markz@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/base/regmap/regmap-irq.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index d2d0014b0d23..330c1f7e9665 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -108,6 +108,9 @@ static void regmap_irq_sync_unlock(struct irq_data *data) * suppress pointless writes. */ for (i = 0; i < d->chip->num_regs; i++) { + if (!d->chip->mask_base) + continue; + reg = d->chip->mask_base + (i * map->reg_stride * d->irq_reg_stride); if (d->chip->mask_invert) { @@ -588,6 +591,9 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, /* Mask all the interrupts by default */ for (i = 0; i < chip->num_regs; i++) { d->mask_buf[i] = d->mask_buf_def[i]; + if (!chip->mask_base) + continue; + reg = chip->mask_base + (i * map->reg_stride * d->irq_reg_stride); if (chip->mask_invert) |